From Charlie Todd of Improv Everywhere:
For our latest mission, we made 100 car alarms go off simultaneously in a shopping center parking lot in Staten Island.
After parking their cars, 100 participants grouped together behind a 10-foot tall wall in a dead end on the other side of the lot. Participants were then conducted like an orchestra as they pressed their horn or “panic” buttons on their keyless entry remotes. Shoppers and employees at the Lowe”™s and Kohl”™s stores were surprised by this unauthorized and mercifully brief project.